text: /*******************************************************************************
   * Copyright (c) 1991, 2015 IBM Corp. and others
   *
   * This program and the accompanying materials are made available under
   * the terms of the Eclipse Public License 2.0 which accompanies this
   * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
   * or the Apache License, Version 2.0 which accompanies this distribution and
   * is available at https://www.apache.org/licenses/LICENSE-2.0.
   *
   * This Source Code may also be made available under the following
   * Secondary Licenses when the conditions for such availability set
   * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
   * General Public License, version 2 with the GNU Classpath
   * Exception [1] and GNU General Public License, version 2 with the
   * OpenJDK Assembly Exception [2].
   *
   * [1] https://www.gnu.org/software/classpath/license.html
   * [2] http://openjdk.java.net/legal/assembly-exception.html
   *
   * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
   *******************************************************************************/
  
  #include "omrcfg.h"
  #include "omrport.h"
  
  #include "CopyScanCacheChunk.hpp"
  #include "CopyScanCacheStandard.hpp"
  #include "EnvironmentStandard.hpp"
  #include "GCExtensionsBase.hpp"
  #include "ModronAssertions.h"
  
  
  MM_CopyScanCacheChunk *
  MM_CopyScanCacheChunk::newInstance(MM_EnvironmentBase* env, uintptr_t cacheEntryCount, MM_CopyScanCacheChunk *nextChunk, MM_CopyScanCacheStandard **sublistTail)
  {
  	MM_CopyScanCacheChunk *chunk;
  	
  	chunk = (MM_CopyScanCacheChunk *)env->getForge()->allocate(sizeof(MM_CopyScanCacheChunk) + cacheEntryCount * sizeof(MM_CopyScanCacheStandard), OMR::GC::AllocationCategory::FIXED, OMR_GET_CALLSITE());
  	if (chunk) {
  		new(chunk) MM_CopyScanCacheChunk();
  		chunk->_baseCache = (MM_CopyScanCacheStandard *)(chunk + 1);
  		if(!chunk->initialize(env, cacheEntryCount, nextChunk, 0, sublistTail)) {
  			chunk->kill(env);
  			return NULL;
  		}
  	}
  	return chunk;	
  }
  
  void
  MM_CopyScanCacheChunk::kill(MM_EnvironmentBase *env)
  {
  	tearDown(env);
  	env->getForge()->free(this);
  }
  
  bool
  MM_CopyScanCacheChunk::initialize(MM_EnvironmentBase *env, uintptr_t cacheEntryCount, MM_CopyScanCacheChunk *nextChunk, uintptr_t flags, MM_CopyScanCacheStandard **sublistTail)
  {
  	_nextChunk = nextChunk;
  
  	Assert_MM_true(0 < cacheEntryCount);
  
  	MM_CopyScanCacheStandard *previousCache = NULL;
  	*sublistTail = _baseCache + cacheEntryCount - 1;
  
  	for (MM_CopyScanCacheStandard *currentCache = *sublistTail; currentCache >= _baseCache; currentCache--) {
  		new(currentCache) MM_CopyScanCacheStandard(flags);
  		currentCache->next = previousCache;
  		previousCache = currentCache;
  	}
  	
  	return true;
  }
  
  void
  MM_CopyScanCacheChunk::tearDown(MM_EnvironmentBase *env)
  {
  	_baseCache = NULL;
  	_nextChunk = NULL;
  }
  
  
  